This action cannot be completed because the other program is busy

Hi Guys, When I try to run technote I don’t know why it gives the following error saying that the server is busy, this action cannot be completed because the other program is busy.
While attempting operations such as Update View, Check Out it is also giving me such errors on some other applications as well. Please help me to solve the problem.
Thanks.

Server busy This action cannot be completed because the other program is busy. Choose ‘switch to’ to activate the busy program and correct the program.
